Index Catalog // ScholarsArchive@OSU

Bird--Habitat Relationships in Interior Columbia Basin Shrubsteepe

Creator:: Earnst, Susan L. and Holmes, Aaron L.
Abstract:: Vegetation structure is important in structuring avian communities. In the sagebrush biome, where continued habitat loss is thought to threaten shrusteppe-obligate birds, both remotely sensed and field-acquired measures of big sagebrush (Artemisia tridentata) cover have proven valuable in understanding avian abundance. Differences in structure between the exotic annual cheatgrass (Bromus...
Resource Type:: Article
Full Text:: SUSAN L. EARNST1,4 AND AARON L. HOLMES2,3 1U.S. Geological Survey, Forest and Rangeland Ecosystem

Food deprivation affects vertical distribution and activity of a marine fish in a thermal gradient: potential energy-conserving mechanisms

Creator:: Sogard, Susan M. and Olla, Bori L.
Abstract:: The effects of reduced food availability on the behavior of juvenile walleye pollock Theragra chalcogramma were examined in laboratory experiments designed to test for potential energy-conserving responses. Groups of juvenile fish were held on 1 of 6 ration treatments ranging from ad libitum to near starvation, and then vertical distribution...
Resource Type:: Article
Full Text:: marine fish in a thermal gradient: potential energy-conserving mechanisms Susan M. Sogard*, Bori L

Growth and behavioral responses to elevated temperatures by juvenile sablefish Anoplopoma fimbria and the interactive role of food availability

Creator:: Sogard, Susan M. and Olla, Bori L.
Abstract:: Larval and age-0 sablefish Anoplopoma fimbria reside in neustonic waters of the North Pacific during spring and summer. We estimated the potential impacts of elevated surface temperatures on ecological processes of growth, conversion efficiency, and behavior in early juvenile sablefish. Growth experiments tested a wide range of temperatures from 6...
Resource Type:: Article
Full Text:: temperatures by juvenile sablefish Anoplopoma fimbria and the interactive role of food availability Susan M

Attitudes of Trawl Vessel Captains about Work, Resource Use, and Fishery Management

Creator:: Hanna, Susan S. and Smith, Courtland L.
Abstract:: The fisheries literature embodies critical assumptions about fisherman attitudes and motivations. Common assumptions are that populations of fisherman are homogeneous in motivation and decision making and that they behave in a myopic fashion, ignoring the effects of their fishing activities on the fishery resource. The results of a survey of...
Resource Type:: Article
Full Text:: Use, and Fishery Management Susan S. Hanna a & Courtland L. Smith b a Department of Agricultural and

Cool, Pathogen-Free Refuge Lowers Pathogen-Associated Prespawn Mortality of Willamette River Chinook Salmon

Creator:: Benda, Susan E., Naughton, George P., Caudill, Christopher C., Kent, Michael L., and Schreck, Carl B.
Abstract:: Spring Chinook Salmon Oncorhynchus tshawytscha are transported above dams in the Willamette River to provide access to blocked spawning habitat. However, 30–95% of these transplants may die before spawning in some years. To varying degrees, salmon in other tributaries—both blocked and unblocked—have similar prespawn mortality (PSM) rates. Our study determined...
Resource Type:: Article
Full Text:: . C., Kent, M. L., & Schreck, C. B. (2015). Cool, Pathogen-Free Refuge Lowers Pathogen-Associated

Managing early succession for biodiversity and long-term productivity of conifer forests in southwestern Oregon

Creator:: Bormann, Bernard T., Darbyshire, Robyn L., Homann, Peter S., Morrissette, Brett A., and Little, Susan N.
Abstract:: Early-successional stages have been truncated and altered in many western U.S. forest landscapes by planting conifers, controlling competing vegetation, suppressing fire, and focusing on maintaining late-seral species and undisturbed riparian zones. Declining area of early-successional stages may be reducing resilience and sustainability on landscapes that experience elevated disturbance related to...
Resource Type:: Article

Dissociation of Cascadia margin gas hydrates in response to contemporary ocean warming

Creator:: Hautala, Susan L., Solomon, Evan A., Johnson, H. Paul, Harris, Robert N., and Miller, Una K.
Abstract:: Gas hydrates, pervasive in continental margin sediments, are expected to release methane in response to ocean warming, but the geographic range of dissociation and subsequent flux of methane to the ocean are not well constrained. Sediment column thermal models based on observed water column warming trends offshore Washington (USA) show...
Resource Type:: Article

Sensitivity and specificity of histology for diagnoses of four common pathogens and detection of nontarget pathogens in adult Chinook salmon (Oncorhynchus tshawytscha) in fresh water

Creator:: Kent, Michael L., Benda, Susan, St-Hilaire, Sophie, and Schreck, Carl B.
Abstract:: Histology is often underutilized in aquatic animal disease screening and diagnostics. The agreement between histological classifications of infection and results using diagnostic testing from the American Fisheries Society's Blue Book was conducted with 4 common salmon pathogens: Aeromonas salmonicida, Renibacterium salmoninarum, Ceratomyxa shasta, and Nanophyetus salmincola. Adult Chinook salmon (Oncorhynchus...
Resource Type:: Article
Full Text:: , Charlottetown, Prince Edward Island, Canada (St-Hilaire). 1Corresponding Author: Michael L. Kent, Department

Norms Governing Urban African American Adolescents' Sexual and Substance-Using Behavior

Creator:: Dolcini, M. Margaret, Catania, Joseph A., Harper, Gary W., Watson, Susan E., Ellen, Jonathan M., and Towner, Senna L.
Abstract:: Using a probability-based neighborhood sample of urban African American youth and a sample of their close friends (N = 202), we conducted a one-year longitudinal study to examine key questions regarding sexual and drug using norms. The results provide validation of social norms governing sexual behavior, condom use, and substance...
Resource Type:: Article
Full Text:: University Susan E. Watson' Jonathan M. Ellend Public Health Institute Johns Hopkins University Senna L

Attracting birds of prey for rodent control

Creator:: Olson, Shilah, Lamson, Karen, Omeg, Michael Kent, Tuck, Brian V., Kerr, Susan, Hammond, Ellen L., and Oregon State University. Extension Service
Abstract:: Rodents are an increasing problem in fields and pastures. Birds of prey play a vital part in integrated pest management of rodent pests. This publication succinctly describes the value to farmers and ranchers of barn owls and American kestrels for rodent control, and ways to help build up local populations...
Resource Type:: Audio and Technical Report

ScholarsArchive@OSU

Bird--Habitat Relationships in Interior Columbia Basin Shrubsteepe

Food deprivation affects vertical distribution and activity of a marine fish in a thermal gradient: potential energy-conserving mechanisms

Growth and behavioral responses to elevated temperatures by juvenile sablefish Anoplopoma fimbria and the interactive role of food availability

Attitudes of Trawl Vessel Captains about Work, Resource Use, and Fishery Management

Cool, Pathogen-Free Refuge Lowers Pathogen-Associated Prespawn Mortality of Willamette River Chinook Salmon

Managing early succession for biodiversity and long-term productivity of conifer forests in southwestern Oregon

Dissociation of Cascadia margin gas hydrates in response to contemporary ocean warming

Sensitivity and specificity of histology for diagnoses of four common pathogens and detection of nontarget pathogens in adult Chinook salmon (Oncorhynchus tshawytscha) in fresh water

Norms Governing Urban African American Adolescents' Sexual and Substance-Using Behavior

Attracting birds of prey for rodent control

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